Tilting trap



June 7, 1:927. 1,631,407

N. c, ELLIS E1' AL TILTING TRAP F11ea-Aug-4, 1922 YPatented June 7, 1927.

'i1-711mm Sursis NORMAN o.v ELLIsAND HUBERT o. EILIs, or.,nvnns'roi\f, ILLINOIS, AssIGNonsf'ro ELLIS :Dianna -ELEVA'IOR COMPANY, or CHICAGO. ILLINOIS, A voo: etromirrroiv or WISCONSIN.

TIL'IING TRAI Application flied August 4, y1922. s'eriaiN-o, 579,65;

vrlhe invention relates to tilting traps. VTheobjectsiof the linvention are to provide improved means for tiltably supporting the drum; improved means 'for operating the valve connections for controlling the flow lof fluid `to the drum; means for balancing f the end pressure upon the trunnion pipe t prevent frictionalretardation; andtoprovide ay structure inwhichthe trunnionpipe extends to one sideofthe drum onlygand .to v yprovide fa. tilting trap which is simple in 'l Y COIlStIuction and'reliable andV eificientlinfoperation.l Y i A' @The invention consists in thef several novel v'features hereinafter set forth 'and more particularly defined by claims at the-'conclusion hereof;

-Inthe drawings: Fig. 1 is a longitudinal section through the trunnion-pipe, of a 'trap embodying the invention. Fig. 2 is asection taken on line'2-2 of Fig; l. Y Fig. 3 is a section on line 3-3 of Fig.l l.

The invention is exemplied in a trap vwhich comprises a drum or tank 4 which is,

adapted to receive the condensate, may be of any suitablev construction and is adapted( to tilt in one direction and discharge the fluid when a predetermined quantity has been delivered into it and to tilt back tol :its normal position, when the fluidhas been discharged7V as Well understood in the art. The trap is supported upon a suitable base 5. The trunnion-pipe supports the drum or tank, has a passage Atherein for the ,y outflow of the fluid or condensate and comprises a hollow vertical member Gprovided with altop flange 7, on which the-drum t is rigidly secured, and al tubular laterally extending member 8V Which is fiXedly secured to member 6 by ya screw-thread connection 9. A circular bearing surface 10 isv formed Onmember 8 at one side of the ver- Y `tical member 6 and a similar surface 11 is A ing-surfaces 10 and 11 respectively, to support the drum at both sides of 'the supporting member 6. Grooves 12 are formed in a Vbracket 15 which isk fixedly mounted upon base 5. These bearings are open yatr the top' as illustratedhin Fig.-2, to minimize the fric- ',tional resistance to the tilting ofthe drum,"

tnerejbeiiig no upwarddisplacing stresses.v

Onel feature of the invention consists in dispensing With the tru-nnion pipe at one'sideY and using the other side for the delivery and i i discharge of the fluidfand ytherefore meinber 6 is closed at the sideat whichthe bear.- ing surface 11`rr is formed.`

base-flange VVV1 7, is'rigidlyfsecured to the base the outer 'end of fittingv 16aii d. Vdelivers*the y"fluid Yorcondensate-to said chamber.- jA pipe 20, to deliver the' vfluid l to1 the"drum, is ixedly secured inthe innerwallliof 'chamber 19, eztz tends inwardly throughfmember 8 ofthe trunnion-pipe andinto-memberf and is'con nected'by an elbow` 221to ariseripipef23, l which discharges the condensate into the up per portion of the drum 4.1 This exemplifies K a structure in' which fluidyis l'delivered into the upper .portion Vof thejtiltable 'drum by a stationary pipe connected tothe ttingv to which the rinlet pipe V'isV connected and eX- tending through .the trunnion-pipe.

secured to rotate therewith; by `interlitting A section oftubing 24: .fits into the outer i l en'd of memberS of the' trunnion-pipe and-is rotates when the drum and trunnion-pipe are tilted *and extends outwardly into a vchamy ber `26 in fitting 16'.- 'Anarm 27 is secured to the zoutercendrof vt'ube'24and operates a valve 28, Which-controls the outflowtof the connected. lValve 28is"`securedto astem 31 which sli'dably guided ina -plug'32 which is screw-threaded Vto the top 'of' fitting 16.

adapted Jto adjustably` clamp'the arm 4inthe is tilted into'one of -itspositions, arm 27 will b'eai'luponlfand close valve 28 and when the and openthevalve.

fluid from the drum. Valve 28 closes against c aseat'29 which opens into-"aidischargekchain` :ber 30,to which thedischarge pipe Sla is -Arm 2 7'is split, as atf, and ascrew" 34k is i `desiredpositionon tube'24i When the drum diaphragm is secured to said fitting'by an inwardly flanged ring 41 which is screw-L threaded to housingk 39 "and its inner margin is secured to ring 38 by a. collar 4,2 which fits around tube 24 and is connected by a screw-thread 43 to ring 38, so that the inner marginof the diaphragm will be clamped between said ring and saidcollai'. A spring 44 in housing 39 is interposed between fitting 16 and collar 42 toppress the ring intov jcontact with ring 37. The latter is preferably formed )of self-lubricating metal to lminimize frictional resistance to the tilting .of the trunnion pipe, whilst maintaining a fluid-tight connection VV with ring 38. The inner face ofthe diaphragm ijs exposedto Vpressure in chamber26 in fitting 16 and the vtrunnion-pipe, theredb'eing sufficient clearance between tube24 and the fitting for this purpose. As aresult, the, pressure in the i fitting and trunnion pipe will exert pressure upon the diaphragm 40 to` hold ring 38 in Contact with ring 37, whilst permitting` longitudinal movementof both rings, due to expansion and contraction, resulting from ten'iperaturechanges- In a structure in which the trunnion-pip-e extends to roneside only, and is connected to a stationary fitting, there is a preponderancek of endwise Vfluid-pressure away from the fittingwhich tends to shift the trunnioinpipe longitudinally on its rollers 13. To substantially offset or equalize this end'wise pressure, a` diaphragm 45, which is subjected to the pressure of fluid yin a counter-direction, is provided. This Vdiaphragm is secured by a nut 49 to a head 46 which engages a stop 47 on the trunnion pipe. This stophas one of' its ends fitting into a corresponding recess in head 46 and is Vadjustably secured to the closed side of the trunnion-pipe by a screw 48. A nut'49 on a screw 50 secures head 46 to the diaphragm 45. Said screw is provided with a stem 51 which is slidable in a guide-socket 52. The outer margin 'of diaphragm 45 is clamped by'a collar 53 to a fitting 54 which is rigidly secured to the base 5 and is provided with a fluid-chamber 55 at the inner side of the diaphragm. A pipe V56 has one of its ends connected tothe inlet chamber 19 in the fitting 16 and its other end to the chamber 55 in the fitting 54 to conduct some of the fluid under pressure to diaphragm 45. As

a result, the diaphragm 45 will be subjected to the fluid under pressure from chamber 19 to exert pressure in a counter direction, to

Vin the other direction.

substantially offset or balance the lpreponderating pressure against the trunnion-pipe By balancing the pressure in this manner, the tilting drum willbe sensitively supported, so that it will accurately respond to the' weight of the column ofy condensate therein.

Infoperation, the fluid to be trapped, such as condensate under pressure, will enter chamber 19 in fitting 16 through pipe 18 and will pass through the stationary pipe 20 and the riserpipe 23 to the upper `portion of the drum. Vhen ya sufficient quantityy of condensate has accumulated in. the drum to require its discharge, the drum will be tilted in one direction, the trunnion-pipe will rotate with the drum and cause arm. 27 to engage abutment 35 and open valvev 28. Thereupon, the condensate will be discharged through the trunnion pipe, tube 24and vchamber 26 into the chamber 30. When the drum has vbeen emptied, it will tilt reversely and cause .the arm 27 to close valve 28.

The invention exemplifies a tilting trap in which thetrunnion pipe rotates around a stationary inlet pipegin which the trunnion pipe extends to one side-only; inV which antifriction bearings sustain the drum and the end pressureA on the 'trunnion pipeis substantially balanced to minimize friction; in which an arm or valve operating device is Venclosed in the `fitting to which the rtrunnion pipe is connectedgin which afluidtight connection is made between the trunnion-pipe andthe fitting without the use of packing; and which is sensitive and efficient in its operation.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent is: e

1. In a tilting trap, the combination of' a tiltable drum, a trunnion pipe secured to and movable with the drum havinga fluid passage connected to the drum, means to rotatably support the tiunnio'n-pipe, said trunnion-pipe comprising Vulzwardly and laterally extending members, a stationary llO trunnion pipe comprising members extending through'the laterally and upwardly ex'- tending members of the trunnion-pipe, a

stationary fitting in which the stationary pipe is secured, a valve in 'said fitting operated by the trunnion-pipe, and a fluid-tight in the trunnion pipe communicating with the drum, a stationary fitting in which the sta- CIK, VU",

connection between thefitting and the laterally extending memberof the trunnion-pipe. 3. In a tilting trap, theV combination of a tiltable drum,- a vtrunnion pipe secured .to

and movable with the drum, having affluid passage connected to the drum, a stationary pipe in the trunnion pipe communicatingwith the drum, a stationary fitting in which the stationary pipe is secured, and a valve inside of the fitting and operated bythe trunnion-pipe.

4. In a tilting trap, the combination of a tiltable drum, a trunnion pipe secured to and movable with the drum, havinga fluid-passage connected to the drum, a stationarypipe tionary pipe is secured, a valve insideof said fitting, an arm on said trunnion-pipe for shifting said valve, and a fluid-tight connection between the trunnion-pipe and said littino. `4 A, 5b. In aV tilting trap, the combination of a tiltable drum, a trunnion-pipe having a fluid-passage therethrough and comprising an upwardly extending portion fixedly connected to the bottom of the drum and a portion extending to but one side thereof, bearings for rotatably supporting the trunnionpipe, a valve adjacentthe outer'end of the trunnion-pipe, a stationary pipe extending through said trunnion-pipe, a stationary fitting for said valve, and valve-operating means in said fitting andbetween the'end of thev trunnion-pipe and said valve. Y

. 6. In a tilting trap, the combination of a tiltable drum, a trunnion pipe having a fluidpassage therethrough and comprising an upwardly extending portion fixedly connected to the bottom of the drum and a portion-extending to but one side thereof, bearings for rotatably supporting the trunion-pip'e, al

.valve adjacent the outer end of the trunnion- .pipe, a stationary `,pipe extending through said trunnion-pipe, a stationary fitting forv l said valve, a fluid-tight connection between the trunnion-pipe and the fitting, and valveoperating means in said fitting and between lthe end of the trunnion-,pipe and said valve.

7; In a tilting trap, the combination of a tiltable drum, a tiunnion pipe rigid and l'iaving a fluidpassage communicating with the drum, means vfor rotatably supporting the :trunnion pipe, a connection for delivering fluid Vunder pressure to the drum from one side thereof, a valve controlled by the tilting v ofthe drum for controlling the fluid, and

-the fitting. v. s s s Signed at Chicago, Illinois, this 22nd day` ter-force on the trunnion-pipe A to v substantially balanceth-e unilateral pressure of the fluid; SJIn-a tilting trap, thecombination of ar y tiltablefdrum, a" trunnion Vpiperigid and [having a fluid'passagecommunicating with the drum and extending tonne side only,

fluid operated means to exert'endwis'e coun- "Ioy means for rotatably supportingthe trunnion pipe,'a connection for delivering iiuid'under pressure tothe drum fromlthe same side thereof, a' valve controlled by the'tilting of the vdrum forcontrolling the fluid, and fiuid operated means to exert eiidwise counterforce on the trunnion-pipe'to substantially balance the unilateral pressure of the fluid.

9. 'Inv a tiltingtrap, the combination ofa tilt-able drum, a trunnion pi'pej rigid and having a fluidpassage communicating with the drum, means for rotatably supporting the trunnion pipe a stationary pipe' for deliveringl fluid 'under pressure'to the,Y drum lextending-through said trunnion pipe, a

valve controlled bythe tiltingv of the'drum for controlling the fluid, and fluid operated 'i Y means to exe-rt endwise counter-force on the trunnion-pipe to substantially balance ,theV` unilateral pressure of the fluid.

io. In a uiting trap, the combination cf a tiltable drum, a trunnion pipe rigid and having a fluid `passage communicating with the drum, means Vfor rotatablyl supporting the trunnion pipe, Va stationaryfitting at lone end of thetrunnion-pipe, a fluid-tight lconv e Vfluid onthe trunnion-pipe. i Y

11. In a tiltingjtrap, the combination of a tiltable drum, a trunnion pipe rigid and l having a fluid passage communicating with the drum, means for rotatably supporting 'i I p the trunnion pipe, a stationary fitting 'atone' end of tlie-trunnion-pipe, a fluid-'tight coni nection between the fitting and the trunnionv Y' pipe, a pipe forvdelivering fluid under'pressure from the fitting to the drum, avalve controlled by the tilting of the 'drum for controllingthe fluid, and means tofexert a counter-,pressure to substantially balance the unilateral pressureof the fluid onthe trunnion-pipe comprising a Y diaphragm and a Vfluid connection between the diaphragm and of July, 1922.

. NORMAN o. Ennis." s HUBERT o. iiLLis. 

